34results about How to "Improve reliability and availability" patented technology

A method of predicting failures of data storage devices in a data storage network. In predicting failures, birth and/or health records of data storage devices in the data storage network are requested. The records are then scaled and thresholded and processed using a probabilistic neural network to classify the data storage devices. Based on the classification, an action is taken to improve the reliability and availability of the data storage network.

The invention discloses a cloud storage data backup method based on characteristic codes. The cloud storage data backup method based on the characteristic codes comprises the steps of monitoring available storage nodes of each storage area by sending a request of uploading a file, generating a index table and carrying out feedback, segmenting the file and obtaining a plurality of file blocks, carrying characteristic code distribution of the plurality of file blocks, carrying out characteristic code distribution of storage nodes in a corresponding storage area and storage nodes of a backup storage area, uploading the file to the nodes of the corresponding storage area and the nodes of the backup storage area, and carrying out storing. According to the cloud storage data backup method based on the characteristic codes, different storage areas are used for the backup, each backup is stored in different storage areas, and then reliability of cloud storage data is improved, time for finding the storage nodes is effectively saved with a characteristic code method, system efficiency is improved and load of a server is reduced. The cloud storage data backup method based on the characteristic codes is applied to cloud storage systems.

A method of controlling an inverter, in which the inverter includes a single-phase inverter arrangement comprising a complementary pair of power switches, comprises the steps of:

controlling the complementary pair of power switches with a modulating signal to output an AC signal;

judging which of the power switches in the complementary pair of power switches is at a higher temperature;

determining the magnitude and sign of a DC offset signal to apply to the modulating signal to reduce the total current in the power switch judged to be at the higher temperature; and

applying the DC offset signal to the modulating signal.

The invention discloses a combined navigation system of small-scale underwater vehicle and a method thereof. The combined navigation system consists of a strap-down type inertial navigation system, a Doppler navigation system, a terrain aided navigation system and a magnetic compass. The method comprises the following steps: judging whether each navigation system operates normally through fault diagnosis, adopting a multi-level laminated structure, combining the features of each navigation sensor and obtaining high-precision navigation information for the combined navigation system through information fusion, thereby improving the precision of the combined navigation system. When certain navigation systems fail, the invention can realize the system reconstruction, so that the underwater vehicle can still operate. Therefore, the invention improves the reliability and usability of the combined navigation system of the small-scale underwater vehicle.

The invention relates to the technical field of software and discloses a method and a device for upgrading client software based on encryption sever management. The method includes that connecting a client with a databank via an encryption sever, obtaining a software upgrade detailed list from the databank, producing a to-be-upgraded list according to a local installed software and the software upgrade detailed list, and then upgrading the local installed software according to information of the to-be-upgraded list. The method and the device can be utilized for improving usability and reliability of the upgraded software.

The invention discloses a locomotive brake controlling method and system. The locomotive brake controlling method includes that when a first carriage serves as an operating carriage, a first CCU (central control unit) detects that the fault occurs to the first carriage and then controls a first redundant device to start; a first braking controller generates a braking command and a state confirming message which are corresponding and sends the braking command and the state confirming message to the first redundant device; the first redundant device receives the braking command and the state confirming message and sends the same to a second BCU (basic communication unit) of a second carriage which is a non-operating carriage through an MVB (multifunction vehicle bus); the second BCU receives the braking command and the state confirming message through the MVB and responds to the braking command. In this way, the non-operating carriage functions in braking in the case that the fault occurs to the brake of the operating carriage, the hot spare redundant function of the brake of the double-carriage locomotive is achieved, and the locomotive is more reliable and available.

Embodiments of the present invention provide a signal transmission method and device, which are applied to the technical field of communications, so as to solve the problem of UE power consumption inthe existing wake-up signal transmission process. The method comprises the following steps: sending first information, and sending M wake-up signals, wherein the first information is used for indicating the number N, the number N is the number of terminal device groups obtained by grouping X terminal devices, paging opportunities of the X terminal devices are the same, the M wake-up signals are used for indicating whether the terminal devices of the N terminal device groups monitor paging signals at the paging opportunity, one wake-up signal is used for indicating whether the terminal devicesof all or part of the N terminal device groups monitor the paging signal at the paging opportunity, the group number of all or part of the terminal device groups is smaller than or equal to a first threshold, the first threshold is a positive integer, X and N are integers greater than 1, and M is a positive integer.

Disclosed is a software application reliability and availability tracking and reporting mechanism that collects event data from target computers, analyzes the data, and produces reliability and availability reports. A network administrator specifies target computers for which event data are collected. The collected event data along with a reliability model are provided to a reliability and availability analysis engine. Output from the engine includes reliability and availability data expressed as durations of time spent in each state and as associations with the events. The reliability and availability data are fed to a report generator which computes reliability and availability metrics. The metrics are used to generate reports that can be interpreted by the network administrator without the need for specialized data analysis skills. The metrics are also aggregated to provide historical and relative ranking reliability and availability data useful for planning and tracking against reliability and availability objectives.

The invention relates to an LDAP (Lightweight Directory Access Protocol) cloud storage service system, which comprises a backbone node group of LDAP cloud storage service, local nodes of LDAP cloud storage service and a LDAP cloud storage server. The LDAP cloud storage service system has the beneficial effects that a LDAP protocol is used for causing a plurality of LDAP servers to form LDAP cloud storage service, so that the storage capability of LDAP service is increased, and the reliability and the applicability are increased; the idea of cloud computing is used, the inner processing of cloud storage is transparent for users, the users only need hand the information needing storage in the cloud storage service, and the users are convenient to use; and the local LDAP nodes are constantly synchronous with backbone nodes, all the data needed by the users can be obtained from the local, the network transmission is not needed, and the operation efficiency is increased. The 'LDAP cloud service' mode has the advantages that a lot of traditional LDAP intensive accesses are dispersed to the applied local, the performance bottleneck problem brought by LDAP concurrent access is solved fundamentally, and meanwhile the demands for the performance and the network bandwidth of the LDAP server are reduced.

The invention provides a train-ground wireless communication authentication key configuration system and method for an urban rail traffic system. The method comprises: a key generation step of generating a wireless authentication key of a certain format through a certain way; a storage step of encrypting the wireless authentication key generated in the key generation step, storing the encrypted wireless authentication key in a cipher text form, and saving the IP addresses of vehicle-mounted (master and slave) and ground wireless communication equipment in a vehicle-ground wireless communication network of urban rail traffic; and a key configuration step of connecting with the vehicle-ground wireless communication network of urban rail traffic via an Ethernet interface to configure the wireless authentication key to the vehicle-mounted (master and slave) wireless communication equipment of a train and the trackside ground wireless communication equipment. Through update and reconfiguration of a wireless communication authentication key, leakage or cracking of the authentication key is avoided, and safe operation of urban rail traffic is ensured.

The invention discloses a multi-controller cache mirroring method and system. The multi-controller cache mirroring method comprises the steps of numbering n controllers in a storage system from 1 to n, wherein n is greater than or equal to 3; backing up data of the i-1 controller in the i controller and backing up data of the n controller in the first controller, wherein i is greater than or equal to 2 but less than or equal to n; and when the i controller is in fault, backing up the data of the i-1 controller into the i+1 controller. The multi-controller cache mirroring method realizes and guarantees backups of the data in each controller at each moment, and efficiently improves usability and reliability of a multi-controller storage system.

The invention provides a multi-port microgrid energy router. The router comprises a high-voltage network side converter port, a low-voltage alternating current load port, a low-voltage direct currentload port and an alternating current power distribution network. The low-voltage alternating-current load port and the low-voltage direct-current load port are connected to a direct-current bus through the high-voltage network side converter port, and are connected with the alternating-current power distribution network through the high-voltage network side converter port via a direct current bus.A high-voltage network side converter is used for realizing stable control of a direct-current bus voltage. When the voltage of the direct current bus exceeds a set range, the whole router is cut offto protect safety of the energy router and low-voltage side electrical equipment, the direct current bus is used for connecting a distributed power supply and energy storage equipment, and power flowand real-time energy balance of a system are reflected through a change condition of the voltage of the direct current bus. In the invention, interconnection and bidirectional energy transfer among different alternating current/direct current systems and different voltage grades can be realized, a standardized interface is provided for the electrical equipment, and bidirectional transmission of electric energy in the system is realized.

The invention provides a system monitoring method and apparatus. The system monitoring method includes the steps: after acquiring the ballot information returned from each node, determining that the self is a distribution node; determining the identifier of each current available auxiliary node and the resources to be monitored; and averagely distributing the resources to be monitored to each distribution node and each current available auxiliary node. The system monitoring method can realize dynamic distribution of the resources to be monitored according to the current available nodes, can improve availability and reliability of the monitoring system, and can realize load balancing between each node.

The invention discloses a self-repair monitoring method of digital radio frequency remote system, therefore each functional module in baseband unit and radio frequency unit of digital radio frequency remote system is monitored and the functional modules at the abnormal state are reset, and the monitoring main machines of baseband unit and radio frequency remote unit have the following functions: monitoring the run state of functional modules by at least one monitoring accessory machine in monitoring main machine schedule uplink and/or downlink which is connected with the functional modules; the monitoring accessory machine sending at least one reset signal to the functional modules when the run state is abnormal and then the functional modules reset according to the reset signal. In addition, the invention also discloses a corresponding self-repair monitoring method. Firstly, the operation normalization of digital radio frequency remote system is ensured, thereby realizing intellectualized self-repair process; secondly the material cost and production cost is reduced.

The invention provides a fault detection method and device and related equipment. The fault detection method is applied to a network card or a switch, and comprises the steps: generating a heartbeat detection message; sending the heartbeat detection message to a service node, wherein the heartbeat detection message is used for detecting the working state of the service node, and the service node is a node where the network card is located or a service node connected with the switch; obtaining a response message, wherein the response message comprises state information used for indicating the working state of the service node; and sending the response message to a management node, wherein the management node is used for managing the service node. Therefore, the performance of the distributed system is improved.

The invention discloses an aluminum electrolysis equipment full life cycle management system and a repair method thereof. The system comprises a management platform, a data center and an application terminal; the management platform is used for standing book management, maintenance management, spare part management, technical archives, fixed asset management, special equipment and warehouse precision management, equipment upgrading and reconstruction management, knowledge management and equipment operation monitoring; data of the management platform is stored in a data server of the data center, and all the data and parameters are accessed to the data center through the mobile internet; the application terminal comprises a plurality of mobile terminals, a plurality of monitoring devices, alarge display screen and an intelligent inspection instrument. The plurality of monitoring devices are connected with the large display screen; and the application terminal is in communication connection with the data server and is used for reporting equipment faults, facility hidden dangers, point inspection, replacement records and spare part conditions in real time and uploading data to the data server. The full-life-cycle management system provided by the invention is used for solving the problems existing in equipment management in the aluminum electrolysis industry at present.

A dual-channel hot standby system and a method for carrying out dual-channel hot standby, the system comprises a hot standby status management layer including two hot standby management units, an application processing layer including two application processors, and a data communication layer including two communicators; the hot standby status management layer is used for controlling the setting and switching between a active status and a standby status of the two application processors, monitoring the working status of the data communication layer, and carrying out synchronization of the control cycles for the two channels of the system; wherein one of the hot standby management units controls one of the application processors, and together constitute a channel of the system therewith; the data communication layer is used for receiving data from outside, and forwarding the data to the application processing layer. The present invention avoids the occurrence of “dual-channel-active” or “dual-channel-standby” status; ensures synchronization of the control cycles of two channels; reduces the time of the system for responding to breakdowns; meets the real-time requirements; enhances the reliability and availability of the system; and ensures a seamless switching between active and standby statuses.

The invention provides a vehicle-mounted automatic driving system, an automatic driving method, equipment and a storage medium. The vehicle-mounted automatic driving system comprises a first receivingmodule, a video collection module, a first recognition module, a second recognition module, a matching module, a position determining module and a route planning module, wherein the first receiving module is used for receiving first viewing angle video data; the video collection module is used for collecting second viewing angle video data of a vehicle; the first recognition module is used for recognizing a plurality of objects in the first viewing angle video data to form a first object set; the second recognition module is used for recognizing a plurality of objects in the second viewing angle video data to form a second object set; the matching module is used for matching the first object set and the second object set to obtain an intersection set of the first object set and the secondobject set; the position determining module is used for determining the relative position of each object in a complementary set of the intersection set the vehicle by the first object set as a universal set; and the route planning module is used for performing route planning according to the relative position of each object in the first object set and the second object set to the vehicle. The system and the method provided by the invention have the advantage that the reliable automatic driving is realized.

Disclosed is a method which improves the grid data access performance; the method is a novel grid data transmission system and integrates the combination of the C/S technology and the P2P technology to solve the problem of improving the data access performance under the grid environment. A plurality of Group Servers are in the G-GridFtp environment; how to ensure that all the Group servers based on the peer-to-peer relation can maintain the same directory database to describe the data information of the G-GridFtp for the users; the method proposes the DGS (Designated Group Server ) concept and the BDGS (Backup Designated Group Server) concept; when the node updating occurs in the G-GridFtp, the DGS sends the received directory database update message to other Group Servers in the G-GridFtp; besides, in a certain time period, if no node updating occurs in the G-GridFtp, the DGS still broadcasts the special directory database information to declare the existence of the DGS.

The invention relates to a gate for rail transit. The gate comprises a plurality of gate case bodies arranged side by side; each gate case body is provided with a controller and an infrared sensor; the gate further comprises an abnormal execution mechanism connected with the controller; a light curtain device is arranged at one side of each gate case body; and the light curtain devices form a visible light curtain wall between every two adjacent gate case bodies. According to the gate for rail transit of the invention, mechanical opening and closing actions are greatly reduced; a blocking effect can still be achieved visually; the occurrence of behaviors such as ticket evasion is prevented through the abnormal execution mechanism; and therefore, the gate has greatly-improved reliability and usability compared with the prior art. The actions of mechanical parts of the gate are reduced largely, and therefore, the service life of the gate is prolonged, and the maintenance cost of the gateis also remarkably reduced.

The invention discloses a bridge safety health monitoring system. The bridge safety health monitoring system comprises a sensor group, a digital module group, a data aggregator and a monitoring center, wherein the sensor group is used for monitoring structural parameters of a bridge; the digital module group is used for converting a multi-channel analog signal into a corresponding digital signal; the data aggregator is used for acquiring data of the digital module group through a field bus network; the monitoring center is used for performing data interaction with the data aggregator through a wireless network; the digital module group is connected with the data aggregator; the data aggregator is connected with the monitoring center; the sensor group comprises n sensors; the digital module group comprises n digital modules; the output ends of the sensors are connected with the input ends of corresponding digital modules; n is a positive integer. By adopting the bridge safety health monitoring system, the safety of bridge monitoring is enhanced, and high reliability and availability are achieved.

The invention discloses a vehicle positioning method and device, a vehicle and a storage medium, and relates to the technical field of image processing, in particular to technologies such as automaticdriving and intelligent transportation. According to the specific implementation scheme, the method comprises the steps: obtaining object distribution information collected by roadside sensing equipment, and determining roadside object distribution information according to the object distribution information collected by the roadside sensing equipment; acquiring vehicle-end object distribution information, and matching the roadside object distribution information with the vehicle-end object distribution information, the vehicle-end object distribution information being distribution information of surrounding objects detected by a target vehicle to be positioned; and determining the position information of the target vehicle according to a matching result. According to the technology provided by the invention, the positioning of the vehicle based on the roadside sensing equipment is realized, and the reliability and availability of vehicle positioning are improved.

The invention provides a detection position determination method, a configuration method, a terminal and network side equipment. The detection position determination method comprises the following steps: determining a first detection position of first indication information, the first detection position being determined based on the first configuration information, and the first indication information being used for indicating the terminal to enter a wakeup state or a sleep state. The present invention provides a determination method for the detection position of the first indication information, thereby improving reliability and effectiveness of communication.

The invention provides a method for avoiding network conflicts in a blade redundancy management system. The system comprises a command sending module and a command response module, the command sending module is included in a management module, and the command response module is included in a BMC (baseboard management controller). According to the network conflict avoiding step, the command sending module sends a command to the command response module, and a network interface in the standby state in the BMC is closed so as to prevent the interface in the standby state from conflicting with an interface in use, so that multiple network interfaces on the MBC are allowed to adopt the same configuration without conflict. By the method, the problem of network configuration conflict caused by inherent characteristics of a Linux kernel of the BMC in the setting process of the blade server management network is solved radically, and reliability and usability of the redundancy management system are further improved; meanwhile, part of the functions can be executed automatically, user operation is simpler, and usability of the redundancy management system is further improved.

The invention discloses a channel state information measurement method, a terminal and a computer storage medium. The channel state information measurement method applied to a first communication device comprises the following steps: sending resource configuration information to a second communication device; sending DCI to the second communication device; sending a channel measurement RS and an interference measurement RS to the second communication device according to the DCI; and acquiring a CSI measurement result sent by the second communication device. The channel state information measurement method applied to the second communication device comprises the following steps: acquiring resource configuration information and DCI sent by the first communication device; acquiring a channelmeasurement RS and an interference measurement RS according to the resource configuration information and the DCI; determining a CSI measurement result according to the channel measurement RS and theinterference measurement RS; and sending the CSI measurement result to the first communication device. According to the embodiments of the present invention, the accuracy requirement of CSI measurement can be satisfied.